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Dec. 13, 1927.

G. A. LOUD VALVE FOR INTERNAL COMBUSTION ENGINES Filed Aug. 12. 1,926 2 Sheets-Sheet l Inventor. GeorgejLLoudl, by M6 WM,

Aug.

Dec. 13, 1927.

G. A. LOUD VALVE FOR INTERNAL COMBUSTION ENGINES Filed Aug. 12. 1926 2 Sheets-Sheet George/1.110

rams Dec. 13,1921.

UNETED STATES PATENT OFFICE.

6103912 A. LOUD, OF FITffHBURG, HASSACHIlSETTS, ASSIGNOR TO LdUD SLIDE VAL ENGINE 00., OF YITCHLBURJG, .MASSACHUSETI'S, A CORPORATION OI IASSACH'IF' YALVE FDR {ETERNAL-COMBUSTION ENGINES.

applicants filed August is, 1926. Serial in. issues.

This invention relates to valves for internal combustion engines and has for its object the roduction of a device of this 7 character w ich is adapted to supply an ex plosive mixture to two cylinders, said mixture bein admitted to the explosion chamber great y compressed, atomized, and preheated. 4

This object is attained by the mechanism I 19 illustrated in the accompanying drawings.

For the purpose of illustrating the invention, one preferred form thereof is illustrated in the drawings, this form havin been found to give satisfactory and relic 1e results, although it is to be understood that the various instiiimentalities of which the invention consists can be variously arranged and organized; and the invention is not limited to ,the racise arrangement and organiea nation oftese 'instrumentalities as herein shown and described exce t as required by the ecopn'fofithe appende claims.

Of e drawings:

Figure l-represents a vertical section of a 95 valve embodying the principles of the present invention shown in connection with portions of two cylinders of an internal combustion engine. 1

Figures 2 to? inclusive represents hori- 30 zontal sections of thesame on lines 2, 2, to

- 7, 7, inclusive on Fig. 1.

Figure 8 represents a vertical sectionof an internal combustion engine showing said valve as applied thereto.

Figure 9 represents a horizontal sect1on of same on line 9, 9, on Fig. .8, and

Figure 10 represents a horizontal section of same on line 10, 10, on Fig. 8.

Similar characters indicate 'like parts 40 throughout the several figures of the drawmgs.

In the drawings, 10 is a portion of the casing of an internal combustion engine, provided with two cylinders 11 and 12, be

45 tween which is a cylindrical chamber 13.

In the cylinder 11 is the usual reciprocating iston 14 and in the cylinder 12 is the usual reciprocating piston 15.

In the upper end of the cylinder 11 is an W explosion chamber 26 which has a passage 16 extending therefrom into the c'hamber 13 and likewise in the up or end of the cylinder 12 is an. explosion c amber 25 which has to regulate the expansion of the a passage 17 extending therefrom'into the chamber 13.

Each cylinder 11 and 12 is provided with the exhaust passages 18.

From the compression chambers 111 and 121 in the lower ends of the cylinders 11 and 12 res ectively extend the passages 19, 19 to the c amber 13.

W thin the chamber 13 is a reciprocating valve 20, this valve being reciprocated by suitable cam mechanism coacting with the lower end thereof this cam mechanism having four independent throws to impart the necessary movements to said valve.

As the cam mechanism itself forms no part of the present invention, it is deemed unnecessary to illustrate the same.

Such a mechanism as is used in connection with the reciprocating valve 20 is fully described in my application Serial No. 128,897 of even date and to which reference is made.

The valve is provided with the usual packing rings 21 and 22 and in the eriphcry of said valve near the upper enci thereof are two annular de'ressions 23 and 24.

In the operation of t e valve the depression 23 is disposed op osite the passage 17 to the explosion chamber 25 when the explosion is about to take place.

When an explosion takes place some of the expanding gases pass through the passage 17 and into the recesses 23 and expand in opposite directions against the end walls of said recesses, thereby balancing the valve and preventing any strain thereon.

The recess 24 operates in the same manner in connection with the ex losion chamber 26, said recess 24 being is osed op site the passage 16 when the exp osion ta es place in the explosion chamber 26.

The valve 20 is provided with a central partition 27 forming two compartments 28 and 29 in said valve extending lengthwise thereof the u per end of these com artments bein c osed b the wall 30 an the lower end y the wall 31.

The distances between these walls 30 and 31 may be varied to make the compartments 28 and 29 longer or shorter in order ses ada explo- 106 mitte through the valve 20 into sion chambers 25 and 26.

At different levels the valve has ports 32 and 33 which during the recprocation of the valve are adapted to register respectively with the passages 16 and 17 extending from the chamber 13 to the explosion chambers 26 and 25.

The lower ends of the compartments 28 and 29 have extending therefrom ports 34 and 35 which are adapted to register respectively with the passages 19 and 19* during the reciprocation of said valve.

In the periphery of the valve 20 and at the lower end thereof is a recess 36 extending longitudinally of said valve and always in communication with the as inlet 37.

F roni the recess 36 extends ateral recesses 38 and 39 in opposite "directioiis, these lateral recesses being at different levels and are adapted to register with the, passa cs 19 and 19% during the reciprocation of tie valve 20.

The port 34 is below the recess 38 and the recess 39 is below the port 35 as is clearly shown in Fig. 1 of the drawings.

'AS the recess 36 is always in constant communication with the inlet 37 for the combustible mixture, it is evident that this recess is at all times filled with said combustible mixture.

When the valve is in its lowest position as indicated in Fig. 1 the recess 38 is shown communicating with the passage 19 into the cylinder 11; At this time the explosion is about to take place in the explosion chamber 25 of the cylinder 12.

When the explosion takes place the (piston 14 will move upwardly in the -cylin er 11 and permit the compression chamber below the piston 14 to be filled with combustible mixture. 7

On the downward movement of the piston 14 this combustible mixture in the compression chamber 111 will be compressed andas soon as, in the movement of the valve 20, the port 34 registers with thepassage 19, this compressed'gas will he force into the compartment 28;

From this compartment 28, the gas is adapted to pass tirough the port 32 and passage 16 1nto the explosionchamberflfi when, upon the return movement of the valve'20, said passage-16 and port 32 are in register, as indicated in F ig l.

The same operation takes place in connection with the other cylinder 12 and in a similar-manner as just described.

The valve casing 10 is provided with water chambers 40 in which the water becomes heated during the operation of the engine and assists in heating the various'parts of the engine and thereby effecting a better operation thereof by preheating the combustible mixture before and during its comression.

When the piston 14 moves upwardly the combustible miirture being drawn into the combustion chanber of the cylinder 11 will expand and will be a ain com ressed when the iston 14 moves downwar ly.

Atter this compression and when the passage 19 and port 34 are in register, this compressed mixture will escape into the compartment 28 where it will again expand. It will then pass through the port 32 and passage 16 into the cylinder 11 above the piston, and when this piston 14 moves upwardly it will again be compressed before the ex' losion in the explosion chamber'QGtakes p ace.

This operation is all substantially the same as fully described in my application Serial No. 128,897 of even date and to which reference is made for the complete operation of the en 'ne.

It is be ieved that the o eration and many advanta ,es of the invention will be understood without further description.

Having thus described my invention, I claim:

1. In an internal combustion engine having two cylinders, each having compression afid explosion chambers and provided between said cylinders with a valve chamber having a gas inlet communicatingtherewith, a reciprocating valve in said chamber having a peripheral recess adapted to constantly communicate with the gas inlet, and temporarily with the passage to the compression chamber of either .cyllndel'.

2. In an/internal combustion engineihaviiig two cylinders, each having compression and explosion chambers and provided between said cylinders with a valve chamber having a gas inlet communicating therewith,

a reciprocating valve in said chamber having a peripheral recess in constant oommunica-' 105 tion with said gas inlet and provided with oppositely extending lateral recesses at different levels adapted to alternately register with passages to the compression chambers of said cylinders. 9

3. In an internal combustion engin'having two cylinders, each hayingeompression and explosion chambers and provided between said :cylinders with a valve chamber I having a gas inlet communicating therewith,

a reciprocating. valve in said chamber havirig a peripheral recess in constant communic'ation with said gas inlet and temporarily registcring with the passages to the compression chambers of said cylinders, said valve having passages extending lengthwise thereof through which compressed gas ma pass from either compression chamber to t e explosion chamber of the same cylinder.

4. In an internal combustion. engine having two cylinders each having compression and explosion chambers, a reciprocating valve provided with separated compartments for the passage of compressed as from the compression chamber to the exp o'sion chamoer of the engine and having two annular depressions, each of which is adapted to be disposed opposite a passage to an explosion chamber when the explosion takes place therein.

5. In an internal combustion engine having two cylinders, each having compression and explosion chambers; a valve associated with said cylinders and provided with means for temporarily connecting the gas inlet with the compression chamber of either cylinder and having means whereby compressed gas from the compression chamber of each cylinder may pass to its explosion chamber.

6. In an internal combustion engine having two cylinders, each having; compression and explosion chambers; a cylindrical chamber between said cylinders communicating by ports with said explosion and compres sion chambers of said cylinders and o the inlet for the explosive mixture; and a reciprocating alve in said cylin rical chanr her having a vertical partition forming two compartments having at opposite ends ports adapted to communicate with passages to said explosion and compression chambers, said valve hiiving a pcripl'ieral recess communicating with said explosive mixture inlet and adapted to communicate with the passages to either compression chamber during the reciprocation of said valve.

7. In an internal combustion engine having two cylinders, each having compression and explosion chambers; a cylindrical chamber between said cylinders communicating by parts with said explosion and compression chambers of said cylinders and to the inlet for the explosive mixture, and a reciprocating valve in said cylindrical chamber hoving at opposite ends ports adapted to con'm'iuuicatc with passages to said explosion and compressi n chambers, said valve having a peripheral recess communicating with said explosive mixture inlet and adapted to communicate with the passe es to either compression chamber during t ereciprocation of said valve.

is. In an internal combustion engine l1itV- ing two cylinders, each having compression and explosion chambers; a cylindrical chamber between said cylinders communicating by ports with said explosion and compression chambers of said cylinders and to the inlet for the explosive mixture, and a reciprocating valve in said cylindrical chamber having a vertical partition forming two compartments having at opposite ends ports adapted to communicate with passages to said explosion and compression chambers, said valve having a eripheral recess extend ing longitudinally oi said valve communicating with said explosive mixture inlet and having latei lly extending recesses adapted to communicate with the passage to either compression chamber during the reciproca tion of said valve.

9. In an internal combustion engine hav ing two cylinders, each having compression and explosion chambers: a cylindrical chamber between said cylinders communicating by ports with said explosion and compression chambers of said cylinders and to the inlet for the explosive mixture, and n recip-- ri'icnting valve in said cylindrical chamber having a vertical partition forming two compartments having at opposite ends ports ada ted to communicate with passages to saic explosion and compression chambers, said valve having a peripheral recess extending longitudinally of said valve communicating with said explosive mixture inlet and having laterally extending recesses adapted to communicate with the passage to either compression chamber at ditlerent levels during the reciprocation of said valve.

10. In an internal combustion engine having two cylinders, each having compression and explosion chambers a cylindrical chamber between said cylinders communicating by ports with said explosion and compression chambers of said cylinders and to the inlet for the explosive mixture, and a reciprocating valve in said cylindrical chamher having a vertical partition forming two compartments having at opposite ends ports adapted to communicate with passages to said explosion and compression chambers, said valve having a peripheral recess extending longitudinally of said valve communicating viith said explosive mixture inlet and having laterally extending recesses adapted to communicate during the reciprocation of said valve with the passage to either com- ,ression chamber, one of said recesses being low and the other above the valve orts communicating with said compression c emhers,

Signed by me at 746 Old South Bldggn. Boston, Mass, this 11th day of Au ust, 1926.

GEORGE A. JOUD, 

